{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: Check for port partner validity before consuming it\n\ntypec_register_partner() does not guarantee partner registration\nto always succeed. In the event of failure, port->partner is set\nto the error value or NULL. Given that port->partner validity is\nnot checked, this results in the following crash:\n\nUnable to handle kernel NULL pointer dereference at virtual address xx\n pc : run_state_machine+0x1bc8/0x1c08\n lr : run_state_machine+0x1b90/0x1c08\n..\n Call trace:\n   run_state_machine+0x1bc8/0x1c08\n   tcpm_state_machine_work+0x94/0xe4\n   kthread_worker_fn+0x118/0x328\n   kthread+0x1d0/0x23c\n   ret_from_fork+0x10/0x20\n\nTo prevent the crash, check for port->partner validity before\nderefencing it in all the call sites."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/usb/typec/tcpm/tcpm.c"
               ],
               "versions": [
                  {
                     "version": "31220bd89c22",
                     "lessThan": "2a07e6f0ad8a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9b7cd3fe01f0",
                     "lessThan": "d56d2ca03cc2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c97cd0b4b54e",
                     "lessThan": "789326cafbd1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c97cd0b4b54e",
                     "lessThan": "fc2b655cb6dd",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c97cd0b4b54e",
                     "lessThan": "ae11f04b452b",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/usb/typec/tcpm/tcpm.c"
               ],
               "versions": [
                  {
                     "version": "6.6",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.6",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.168",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.91",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.31",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.10",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5"
            },
            {
               "url": "https://git.kernel.org/stable/c/d56d2ca03cc22123fd7626967d096d8661324e57"
            },
            {
               "url": "https://git.kernel.org/stable/c/789326cafbd1f67f424436b6bc8bdb887a364637"
            },
            {
               "url": "https://git.kernel.org/stable/c/fc2b655cb6dd2b381f1f284989721002e39b6b77"
            },
            {
               "url": "https://git.kernel.org/stable/c/ae11f04b452b5205536e1c02d31f8045eba249dd"
            }
         ],
         "title": "usb: typec: tcpm: Check for port partner validity before consuming it",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-36893",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}